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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8709466 B1

PDFFull Text
Expired
Date of Patent:
Apr. 29, 2014

Filed:

Dec. 21, 2011

Cationic polymers for antimicrobial applications and delivery of bioactive materials

Applicants:

Daniel Joseph Coady, San Jose, CA (US);

Amanda Catherine Engler, San Jose, CA (US);

Kazuki Fukushima, Yonezawa, JP;

James Lupton Hedrick, Pleasanton, CA (US);

Jeremy Pang Kern Tan, Singapore, SG;

Yi Yan Yang, Singapore, SG;

Inventors:

Daniel Joseph Coady, San Jose, CA (US);

Amanda Catherine Engler, San Jose, CA (US);

Kazuki Fukushima, Yonezawa, JP;

James Lupton Hedrick, Pleasanton, CA (US);

Jeremy Pang Kern Tan, Singapore, SG;

Yi Yan Yang, Singapore, SG;

Assignees:

International Business Machines Corporation, Armonk, NY (US);

Agency For Science, Technology And Research, Singapore, SG;

Attorney:

Michael R. Roberts

Primary Examiner:

Robert A Wax

Assistant Examiner:

Jessica Worsham

Int. Cl.
CPC ...
A61K 9/00 (2006.01); A61K 31/357 (2006.01); C12N 15/88 (2006.01); C08G 63/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A cationic star polymer is disclosed of the general formula (1):I'P′]  (1),wherein w′ is a positive number greater than or equal to 3, I′ is a dendritic polyester core covalently linked to w′ independent peripheral linear cationic polymer chains P′. Each of the chains P′ comprises a cationic repeat unit comprising i) a backbone functional group selected from the group consisting of aliphatic carbonates, aliphatic esters, aliphatic carbamates, aliphatic ureas, aliphatic thiocarbamates, aliphatic dithiocarbonates, and combinations thereof, and ii) a side chain comprising a quaternary amine group. The quaternary amine group comprises a divalent methylene group directly covalently linked to i) a positive charged nitrogen and ii) an aromatic ring.

Find Patent Forward Citations

Coady, Daniel. (2014). Cationic polymers for antimicrobial applications and delivery of bioactive materials (U.S. Patent No. 8709466). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8709466

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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